Pole dancing video editing job?

My fiance was offered a side job yesterday to edit video for a guy he met while at work. The man said it was soft core pole dancing and that he had tons of video and needed to edit them. My fiance never watches and claims that its not his thing. He wants to do this strictly for the money to help out with wedding costs. I feel like its dirty work and that money made from it would be tainted. I really don't feel comfortable having him watch the videos over and over trying to piece them together. He asked me how I felt about it, but he thinks I'm overreacting since I am not against for masturbation or for laughs. Should I put my foot down and say no, or let him make his own decisions?